介绍Mathematica软件的使用

The Usage of the Mathematica Software

Mathematica软件是研究数学问题的软件,具有良好的作图与数值计算功能,能进行多项式的计算、因式分解、展开,能进行有理式的计算、求解有理式方程的根,能进行向量及矩阵的计算,能进行极限、导数、积分、级数的有关计算,求解常微分方程等等.使用Mathematica软件,可以画出一元、二元函数的图形,通过图形可以得到函数的某些特性.但在作图方面,由于计算机显示的局限性,如选择不适当的显示区间,会使函数"丢失"一些重要的特征,造成图形失真,在数值计算方面有时还会产生误导,出现错误的结论等等.在软件的使用中,要结合数学基础知识,进行适当的计算,判断与整合,结合软件的特点,可以较好地解决这些问题.

Mathematica is a software to study mathematics problems. It has good functions of drawing and calculating. With Mathematica, graph of functions with one or two unknowns can be drawn, and some characteristics of the function can be obtained. But if an inappropriate area is chosen, the function will lose some important features, therefore the graph will be distorted. So during the usage of Mathematica, the characteristics of the software should be well combined with the mathematics fundamental knowledge so as to solve the above mentioned problems.